Cultivator.



N0- 790,387.v PA'TENTED MAY 23, 1905. v R. PBDERSON.

` GULTIVATORQ AAAAAAAA 16N lFILED JUNI: 9; laos.

7 PATENTED MAY 23, 1905-.

R. lPEDBRSONl GULTIVAIOR. APPLIoATIoN FILED JUNE 9.1903.

2 SHEETS-#SHEET 2.

UNITED STATES Patented May 23, 190'5.

PATENT OFFICE.

CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. r790,38*?, dated May23, 1905.

- Application iiled June 9, 1903. Serial No. 160,773.

To all whom, t may con/cern,.-

Be it known that I, RAsMUs PEDERsoN,-a citizen of the United States,residing at Marquette, in the county ,of Hamilton and State of Nebraska,have invented new and useful Improvements in Cultivators, of 'which thefollowing is a specification.

My invention has relation to cultivators; and its primary object is toprovide a new and useful device of this character having its shovels soarranged upon the machine-frame lthat their position with relation tothe longitudinal center of the machine maybe changed ,at the will of theoperator, whereby it is possible to cause the shovels to follow a chosendirection regardless of the varied pull of the draft-animals.

Further objectsof the invention are, first, to provide novel means formounting the shovels upon the machine-frame to permit of their positionbeing changed; second, to provide means for clearing the shovels of theground or causing them to seek a penetration of any `desired degree,and, third, to provide novel means for securing the shovels in appliedposition. v Theinvention consists of the construction, combination, andarrangement of parts hereinafter fully described, claimed, andillustrated in the accompanying drawings, in which- Figure 1 is aperspective View of a cultivator constructed in accordance with myinvention. Fig. 2 is a central longitudinal sectional view thereof.Fig?) discloses views of means for securing the shovels in appliedposition. Fig. 4 is a detail perspective view of means for attachingdisks to the cultivator.

Referring to the drawings by referencenumerals, l designates the sidebars of a cultivator-frame, the same being connected at their rear endsby means of'parallel bars 2, so relatively arranged that a space 3 ispro- -vided therebetween. To the front ends of these side bars 1 may beattached any suitable draft device, by means of which the cultivator maybe drawn. Secured to the frame in advance of the transverse centerthereof are bearings 47, which are adapted to journal upon'the frame anaxle 5, the depending arms 6 of which have their lower portionslongitudinally disposed to provide spindles 7. These spindles havejournaled thereon carryingwheels, which are adapted to support the frontend of the machine, while the rear end thereof is supported by means ofa caster-wheelS. The side bars 1 have their under faces provided withbearings 9, adapted to receive the reduced portions 10 ofhorizontally-disposed arms 11, that the latter may be journaledupon themachine-frame. The reduced portions-of the arms 11 are circular incross-section to permit them to be turned in their bearings during theoperation of lowering or raising the shovels. These arms have theiradjacent ends connected by means of a link 12 and are adapted to supporta plurality of pivotally-mounted drag-bars. The drag-bars each comprisetwo members arranged in different planes, one an upper member and theother a lower member. The upper members have their rear ends bentdownwardly and the upper members have their forward ends bent upwardlyto provide horizontally and vertically disposed portions 15 and 16,respectively. The vertically-disposed portions 16 are adapted to passthrough apertures 17 in the horizontally-disposed portions 15 and areprovided with a'plurality of perforations, through which pins 17 pass tohold the members in relative position and to permit of the verticaladjustment of the lower member, which is adapted to have secured to itsrear end the shovels, consequently providing for the shovels a verticaladjustment to regulate the depth of their penetration. Secured to thehorizontal portions of the lower members are a plurality ofvertically-arranged shafts 17 b, the upper ends of which are adapted tofreely pass through the horizontal portions of the upper members intoand through bearings 18 in the arms 11 to pivotally mount the drag-barsupon the frame. Each shaft has its upperend provided with a series ofperforations, through one of which a pin 19 is adapted to pass to retainthe shaft in applied position. This manner of connecting the members andmounting the drag-bars upon the frame permits of the lower membershaving vertical adjustments and the drag-bars having pivotal connectionwith the frame.

The shovel-carrying frames, preferably two IOO in number, comprisearched members 19, each provided with a horizontally-disposed arm 20,which projects rearwardly from the lower ends of the arched members andat acute angles with relation to their longitudinal centers. These armsare adapted to carry shovels of any improved construction, and fromtheir arrangement upon the arched members dispose the shovels in eitherside of a furrow. The arms 2O are provided with plates 21, to which therear ends of the drag-bars are secured. These shovel-carrying frames areadapted to be secured together by means of bars 21:L in order to preventtheir lateral relative displacement. The forward ends of each pair ofdrag-bars are received between parallel-arranged arms 22 to connect eachpair that they may have imparted thereto relative movements, and saidarms are connected by means of a link 23. An operatinglever 24 isfulcrumed upon the link 12 to place its rear end in convenient reach ofthe operator and its front end over the link 28, to which it is secured.Itis apparent in view of the connection of each pair of drag-bars andtheir pivotal connection with the machine-frame that a movement of thelever in one direction or the other will cause the dragbars to swingupon their pivots at an angle with relation to the longitudinal centerof the machine-frame, and consequently change the position of theshovels with relation to the longitudinal center of the machine-frame.To further explain this, it might be supposed that the draft-animalswere causing the machine to be drawn in a direction that would cause theshovels to leave the furrow if they were rigidly connected to themachine-frame; but by swinging the drag-bars either to the right or leftthe position of the shovels is changed sufliciently to compensate forthe irregular direction of the machine-frame.

The shovels may be secured to the arms 2O in the manner disclosed inFig. 3 of the drawingsthat is, by providing the arms with slots havingthe entrances thereto closed by removable caps 25 and the inner wallsthereof corrugated to receive the corrugated heads 26 of the shovels.This manner of securing the shovels in applied position prevents themfrom having a rotary movement and also permits the shovels beingadjusted to any angle desired. In order that the shovels may be raisedfrom or forced into engagement with the soil, I provide means which maybe manipulated by the operator of the machine. This means consists ofparallel bars 27, spaced apart at their ends and between which theforward portions of the drag-bars freely pass, and a U- shaped lever 28,having its free ends secured to the bar 27 and its rear end bentdownwardly and passed through the space 3 to place the connecting-bar 29thereof in convenient reach of the operators feet. This lever hasconnection, by means of rivets 2STL or their equivalent, with the arms11, which when the rear end of the lever is caused to move upward willbe turned in their bearings, and consequently cause the shovels to beraised from engagement with the soil. A reverse movement of the leverwill cause the shovels to be brought into engagement with the soil, andtheir depth of penetration may be regulated by the amount of pressurethe operator may bring to bear upon the connecting-bar E25). Theprovision of the bars 27 beyond the pivotal point of the arms 11facilitates the raising and lowering of the shovels in a manner that isobvious.

In Fig. 4 of the drawings I have disclosed means for securing disks tothe arched members 19, which means I will now describe. Secured to thedepending arms of the arched member 19are segmental plates 30, whicharel spaced apart, as shown in the drawings, and provided along theircurved edges with depending ilanges 31, having their lower endshorizontally disposed to provide channels 32. Secured to the plates atpoints adjacent the member 19 are depending arms 33, having their lowerends provided with enlarged heads. Mounted upon these arms to have avertical movement are sleeves 34. These sleeves are each secured to oneend of shafts 35, the opposite ends of which are similarly provided withsleeves to be mounted upon arms 36, which are adjustably carried by theplates. Disks 37 are adapted to be secured to the shafts, and they areadapted to be yieldingly held in engagement with the soil by means ofsprings 38. The adjustment of arms i6 permits of disks being broughtinto engagement with the soil at any angle desired. The plates areprovided along their front edges with extensions 39, by means of whichthey may be secured to the drag-bars.

It is apparent from the above description, taken in connection with theaccompanying drawings, thatI providea cultivator in which the positionof its shovels may be easily, quickly, and conveniently regulated toovercome or compensate for the irregularities in the pulling of themachine, that I provide a new and novel means for raising and loweringthe shovels and causing them to seek any desired degree of penetration,and that the construction, combination, and arrangement of parts aresuch as to enable me to produce a cheap, durable, and eflicient deviceof the character described.

Having described my invention, what I claim is- 1. In awheel-cultivator, the combination with a machine-frame, of armsjournaled thereon, drag bars carried by said arms, shovels carried bysaid drag-bars, and means for turning the arms to raise or lower theshovels.

2. In a wheel-cultivator, the combination with a machine-frame, of armsjournaled lOO rob

IIO

thereon, drag-bars pivotally secured to the arms and consisting of twomembers adjustably connected together, shovels carried by the drag-bars,means for turning the arms to raise or lower the shovels, and means forturning the drag-bars upon their pivots to change the position of theshovels with respect to the longitudinal center of the'machine.

3. In a wheel-cultivator, the combination with a machine frame, of armsjournaled thereon, drag-bars suspended from said arms, shovel-carryingframes carried by the dragbars, said frames comprising arched membersand rearwardly-projecting arms, said rearwardly-projecting arms beingprovided with slots having corrugated inner walls, shovels, a corrugatedhead secured to the shovels and adapted to be received by the slots, andmeans for turning said arms to raise or lower the shovels.

Y 4. In a wheelcultivator, the combination with a machine frame, of armsjournaled thereon, drag-bars comprising members adjustably connectedtogether and adjustably suspended 4from the arms, shovels carriedby thedrag-bars, and means for turning the arms to raise or lower the shovels.

5. In a wheel-cultivator, the combination with a machine-frame, of armsjournaled thereon, drag-bars'pivotally suspended from said arms, shovelscarried by the drag-bars, means for turning the drag-bars upon theirpivots to change the position of the shovels,

and means for turning the arms to raise the shovels from engagement withthe ground.

6. In a wheel-cultivator, the combination with a machine frame, of armsjournaled thereon, drag-bars pivotally suspended from said arms, shovelscarried by the drag-bars, a bar loosely mounted on the iront ends of thedrag-bars, a U-shaped lever having the rear end thereof bent downwardlyover the rear end of the m'achineframe and having the front ends thereofconnected to the arms and said bar, and means for turning the drag-barsupon their pivots to change the position of the shovels.

7. In a wheel-cultivator, the' combination with a machine-frame, of armsjournaled thereon, drag-bars adjustably suspended lfrom the arms,shovels carried by the drag-bars, and means for turning the arms toraise or lower the shovels.

8. In a wheel-cultivator, the combination with a machine-frame, of armsjournaled' thereon, drag-bars comprising two members adjustablyconnected, shovels carried by the drag-bars, shafts carried by saiddrag-bars and pivotally journaled in said arms to have verticaladjustments, means for connecting the drag-bars in pairs, a linkconnecting said means, a lever fulcrumed. on .the arms and having theforward end connected to said link, a bar loosely mounted on the frontends of the drag-bars, and a U-shaped lever having its forward endsconnected to said bar and its rear end bent downwardly over the rear endof the machine-frame. n

9. In a wheel-cultivator, the combination witha machine frame, of armsjournaled thereon, drag-bars pivotally and adjustably suspended Jfromsaid arms, shovels carried by the arms, means for turning the arms toraise or lower the shovels, and means for turning the drag-bars upontheir pivots to change the position of the shovels.

10. In a wheel-cultivator, the combination with a machine frame, of armsjournaled thereondrag-bars comprising members each having oneof its endsbent to engage the adjacent members, means for adjustably connecting themembers, shafts carried by the drag-bars to be adjustably journaled uponthe arms, shovels carried by the drag-bars, means for turning the armsto raise or lower the shovels, and means for turning the dragbars tochange the position of the shovels.

In testimony whereof I have signed my name yto this specication in thepresence of two subscribing witnesses.

RASMUS PEDERSON.

Witnesses:

GEO. C. PoULToN,

R. H. kTERRELL.

